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Hưng Mỹ

8.900° N   104.983° E  ·  1 M
74 /100
PEAK
Worth setting up — 6 hours of workable sky from 23:00.
BEST WINDOW 23:00–05:00 · ASTRO DARK 23:00–05:00 · MOON 0%
Transparency
0.44
Seeing
0.87
Cloud
2%
Moon
0%

Good tonight

Hour by hour, local to Hưng Mỹ. Colour encodes the score and nothing else; every other measurement is luminance.

Sky state
Lighter = daylight and twilight  ·  unshaded = astronomical dark
Score
23
00
01
02
03
04
05
06
74
73
68
60
64
64
39
0
BEST WINDOW
Low cloud
0%
0%
0%
9%
9%
10%
11%
2%
Mid cloud
0%
0%
0%
1%
0%
1%
0%
0%
High cloud
2%
2%
13%
16%
8%
0%
0%
2%
Transparency
0.42
0.41
0.41
0.39
0.41
0.41
0.44
0.44
Seeing
0.86
0.86
0.85
0.87
0.84
0.77
0.75
0.77
Moon clear
down
down
down
down
down
down
down
down
Inspect

Cloud tracks show clear sky — a longer bar is better. The figure inside each track is the raw measurement.

Why this hour scored what it did
23 Good · 74/100
Starting from
100
Cloud
−1
Transparency
−23
Seeing
−3
Moonlight
−0
Darkness
−0
Score
74
CLOUD 2% LOW 0% MID 0% HIGH 2% SUN -61.1° MOON -59.8° / 0% WIND 3 TEMP 28°
Excellent 75+ Good 55+ Fair 35+ Poor 15+ Not worth it Seeing is estimated from surface wind — see how we score.

What are you doing tonight?

The same forecast, weighted for the target. Planetary work barely cares about moonlight; long exposures die on high cloud a visual observer would never notice.

SET UP 22:30 · OBSERVE 23:00–05:00 · 6H · MEAN 69

Darkness and moonlight dominate. Faint fuzzies need a genuinely dark sky more than they need steady air.

23010305
TWILIGHT BEGINS 05:00
SET UP 22:30 · OBSERVE 23:00–06:00 · 7H · MEAN 73

Seeing is everything and moonlight is irrelevant. Bright targets punch through twilight, so darkness barely counts.

23010305
TWILIGHT BEGINS 06:00MOONLIGHT IGNORED FOR THIS TARGET
SET UP 22:30 · OBSERVE 23:00–06:00 · 7H · MEAN 60

Tolerates soft seeing, but high cloud wrecks a wide frame and moonlight raises the background everywhere.

23010305
TWILIGHT BEGINS 06:00
SET UP 22:30 · OBSERVE 23:00–05:00 · 6H · MEAN 55

Needs conditions to hold still for hours. Sustained transparency matters more than any single good hour.

23010305
TWILIGHT BEGINS 05:00
SET UP 22:30 · OBSERVE 23:00–06:00 · 7H · MEAN 67

Naked eye, whole sky. Total cloud and moonlight are the only things that count.

23010305
TWILIGHT BEGINS 06:00
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The next week of nights

Tonight · 12 Aug
74
Good
MOON 0%
23:00–05:00
Tomorrow · 13 Aug
68
Good
MOON 1%
20:00–02:00
Friday · 14 Aug
28
Poor
MOON 5%
Saturday · 15 Aug
24
Poor
MOON 10%
Sunday · 16 Aug
35
Fair
MOON 19%
01:00–02:00
Monday · 17 Aug
18
Poor
MOON 28%
Tuesday · 18 Aug
11
Clouded out
MOON 37%
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Nearby locations

About this forecast

Conditions for Hưng Mỹ, Vietnam are computed from the MET Norway forecast model for these exact coordinates, combined with sun and moon positions we calculate directly. The score weighs cloud cover by layer, atmospheric transparency, estimated seeing, moonlight and how dark the sky actually gets. Read the full method →